Answer:
There are 2 different ways, depending on the amount of data given;
<em>1st way:</em> When only the line on the graph is given (Without any coordinate points given) then the slope could be found out with the formula of <u>Rise/Run, or Change in y / Change in x</u>
<em>2nd way: </em>When a line and 2 coordinate points are given, the the formula that would be used is:<u> </u><u>, where X₁ and Y₁ are the coordinate points of the 1st given point, and X₂ and Y₂ are the coordinate points of the 2nd given point.</u>
Hope this helps!